|Chen, Z - ISU|
Submitted to: Iowa Academy of Science Meeting
Publication Type: Abstract Only
Publication Acceptance Date: March 7, 1995
Publication Date: N/A
Technical Abstract: A shriveled seed mutant (328) was found in progenies from the cross of AP2 and p2180 at the Pioneer Hi-Bred International Station in Cedar Falls, IA. It was found that shriveled seeds had a higher starch content after 10-11 stage (10.0 to 11.9 mm long seeds) and lower soluble sugar content when compared to round seeds from wild type (p2180). Severely shriveled seeds had higher starch content for the mutant and lower soluble sugar content. After the 10-11 stage, activity of alpha-amylase in mutant seeds was lower than that in p2180 seeds but no significant difference in ADP-glucose pyrophosphorylase was found between 328 and p2180 seeds. In addition, sooner and faster water loss in mutant seeds occurred during seed maturation than those of p2180. Dry matter accumulation for 328 and p2180 also differentiated after 12-14 stage (12.0 to 14.9 mm long seeds).